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Finding the Fourth Proportional to 85,358.27, 117,727.80 and 54,734.27

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Solution

The fourth proportional to 85,358.27, 117,727.80 and 54,734.27 is: 75,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,358.27 : 117,727.80 = 54,734.27 : x
  2. Step 2: Convert to fraction form
    85,358.27/117,727.80 = 54,734.27/x
  3. Step 3: Cross multiply
    85,358.27x = 117,727.80 × 54,734.27
  4. Step 4: Simplify right side
    85,358.27x = 6,443,745,191.71
  5. Step 5: Solve for x
    x = 6,443,745,191.71/85,358.27
  6. Step 6: Final answer
    x = 75,490.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.